What could I do to a 2005 CTS to add around 100HP? Without buying a CTSV or a new engine..
Asked by Noremac1993 Jun 18, 2012 at 08:09 PM about the 2005 Cadillac CTS 3.6L RWD
Question type: Car Customization
I know I can get a cold air intake, ehhaust, and a tuner, but that's it..